, a debate with candidates fofert u.s. -- for the u.s. senate in missouri. thenmichelleobamaatthe congressional black caucus. and then a discussion of medicare advantage program funding. >> tomorrow, mexican president calderon discusses u.s.-mexico relations and the consumer -- country's standing locally on the council on foreign relations. coverage begins at 9:00 a.m. eastern on c-span 2. >> we are trying to encourage our developers to think about what information they really need to make the app functional. so for instance if you are playing a game, do they really need to collect geo location information that will track the consumer if as aggregated and collected? it can collect the consumer as she pass through the day and for all day. what information is needed to make the app fumpingsal? in other words, should access be limited? how long do you need to retain it? and when you are done with it, what are you going to do with it? >> one of the big problems is to look for -- they are looking for more and more people to move into this industry, creating apps, all that goes i